One warning, if you use a display over HDMI, then you might have a bad time with Radeon on Linux. I use an LG C2 TV as my monitor, and there is a bug in the driver that forces it to a crappy ycbcr mode that ruins text clarity. I did try all manner of workarounds like hacking up the EDID profile, but I gave up and went back to Windows for now.
It's a very specific issue, but a showstopper if it affects you
That's the display advertising a specific function set, not the card, and it has to do with the large panel size and pixel density. If you used a proper monitor I'm pretty sure you wouldn't have that issue.
Ok, then why does the same display work perfectly in windows? The display supports full RGB both 8 and 10 bit uncompressed. There is an open issue for this on the driver gitlab repo.
Don't monitor shame me please. Also, the pixel density is within 5% of my 27" 1440p monitors.